Yes, Hidden City: Hidden Object is free to download and play, but it may contain in-app purchases for additional content or features.

Yes, Hidden City: Hidden Object typically requires an internet connection to download content and access certain game features, though some offline play may be possible.

You can contact support or send feedback for Hidden City: Hidden Object through the in-app support feature or by visiting the official website, where you can find additional contact information and resources.

You can manage or cancel your Hidden City: Hidden Object subscription through the app store settings on your device, where you can find subscription options under your account settings.